Ball-cock.



PATENTED AUG. 28, 1906.

A. F. CURTIN. BALL COCK.

APPLICATION FILED JUNE 16.1905.

YIIIIIIIII Liu/fm rrED STATES PATN T FFICE.

Specification of Letters atent.

Patented Aug'. 28, e

pplication led June 16,1905. Serial No. 265,618.

ToJtZZ whom it may concern.-

Beit known that I, ANDREW F. CURTIN, a citizen of the United States, residing in Medford, in the county of Middlesex and State of Massachusetts, have invented an Im rovement in Ball-Cocks, of which the fol owing description, .in connection with the accompanying drawings, is a'speciiication, like letters on the drawings representing like parts;

The present invention relates to a ballcock, the object of the invention being to -prevent so far as possible the disagreeable hissing sound caused by the outflowing water, as well 'as the sound due to the throttling of the water as the valve approaches its seat.

In accordance with the invention the valveshell, which is providedwith an an inlet and a valve-seat at said inlet and with a lateral outlet beyond the said seat, is further provided with a transverse passage which eX- tends around the valve itself, the valve having a close but not absolutely water-tight it in the shell and being longitudinally movable toward and from the seat under the iniiuence of the oat. The valve proper, whether seated or unseated, occupies a portion of the space in the shell between the inlet and the outlet, so that the water in passing from the inlet to the outlet flows along the valve and also through the transverse passage, the main volume of water taking the atter course. The two streams, however, are at an angle to each other, so that each 'breaks the force of the other, and the transverse passage terminates insubstantial alinement with the outlet-tube, so that when the water finally reaches the f; aid utlet-tube the force of the low is not only broken, but the direct ilow of Water is notin any way retarded or influenced, so that the water will escape silently and without the noise produced in the ordinary ball-cock, where the water impinges against the end of the valve f or other abutment and is deilected thereby into the outlet.

, Figure 1 is a vertical section of a ball-cock 'rlembodying the invention, showing the valve valve-seat a? is formed at the end of a dctagiiii able member a, which is inserted in the inlei passageto the valve-shell a3 and heldin. pos-i1 tionby means of the inlet-pipo a4, Whicbis coupled to the inlet portion of the shell' by means of a coupling-nut a5. The valve b, which is in the form of-a longitudinally-movable plunger controlled by the ball mernbci b, is fitted yin the valve-shell a3 and held against the valve-seat a2 by the upward res-- sure of the float. ever, is n'ot absolutely Water-tight, and when the valve is unseated part of the water will How along the valve. The main volume off water, however, is deiiected into a transversel passage around the valve l), the said passage ,f

in the construction shown in Figs. 1 and 2 be# ing spiral in shape and gradually increasing in capacity until it reaches the outlet-tube c. The stream of water flowing through the passage mingles with the water which. il ows along past the body of the valve I), and tends to deilect'such water into the transverse passage,

The it of the valve, ow

the two streams checking each other, while the main body of water is finally delivered into the outlet-tube in substantial alinenient therewith.

In order to prevent any waterfrom escapingjihrough the valve-opening in the shell, a supplemental passage c2 is formed around the valve b between the main outlet-passage and the end of the valve-shell a3 where the valve substantial alinement therewith.' The areaV of the valve is considerably larger than the area of the opening through the seat, so that as the valve approaches the seat in closing, thus throttling the i'low of water, the pressure upon the face of the valve will be gradually reduced, causing the valve to close quickly and easily. It is not essential that the transverse passage should be spiral in term, and,

as shown in Figs. 3 and 4, a single annular passage (L70 may be formed around the valve b, the water being admitted to said annular passage, when the valve is unseated, through a longitudinali channel (L71, which extends from the space around the valve-seat to the channel a7".

Whatv I claim is 1. In a ball-cock, a valve-shell and valve longitudinally movable therein; a valve-seat within saidshell; an outlet-tube leading troni said shell; and a spiral passage leading around said valve from said valve-seat to said outlet-tube, substantially as described.

2. In a ball-cock, a valve-shell and valve longitudinally movable therein; a valve-seat within said shell 5 an outlet-tube leading from said shell; and a spiral passage leading around said valve from said Valve-seat to said outlettube, said passage increasing in capacity as it approaches the outlet, substantially as described,

3. In a ball-cock, a with an inletpassage and an outlet-passage at an angle. to'each other; a valve controlling the inlet-passage and substantially occupy valve-shell provided ing the space Within said inlet-passage, but affording a small supplemental water-outlet passage around said valve; and a main wateroutlet passage at an angle to said supplemental passage and terminating in substantial alineineut with the outlet.

4. In a ball-cock a valve-shell provided with a valve-seat; a valve movable in said shell toward. and from said seat an outlet- `passage from said shell; said valve being'located between said seat and said outlet-.passage; and inain and supplemental water-passages through said shell past the valve between said seat and said outlet-passage.

vIn testimony WhereotIA have signed my naine to this specification inthe presence of two subscribing Witnesses.

ANDREW 'F eURTiN.

Vitnesses MARGERET E. COVENEY i, HENRY J. lnvnaMom. Y 

